I have a client I installed a WordPress site. I went to try to log in and install a new security plugin, and the site is being displayed in an iframe. When I navigate to sub pages, the page URL no longer displays in the URL bar of the browser. I've tried Chrome and Firefox (I'm on a Mac), and none of my other WordPress installs are having this problem.
The login page for the site doesn't display at all, just a blank page with no content and an error message in the console that says "Refused to display 'login page name' in a frame because it set 'X-Frame-Options' to 'SAMEORIGIN'." I have installed WordPress in a sub directory rather than in the site root, but I set all of my installs up this way.
How do I find out where this iframe is coming from? My desired end result is to get rid of it entirely.